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Hasil cari dari kata atau frase: radiothorium (0.00882 detik)
Found 2 items, similar to radiothorium.
English → English (WordNet) Definition: radiothorium radiothorium n : radioactive isotope of thorium with mass number 228 [syn: thorium-228]
English → English (gcide) Definition: radiothorium radiothorium \ra`di*o*tho"ri*um\ (r[=a]`d[i^]*[o^]*th[^o]r"[=e]*[u^]m), n. (Chem.) an earlier name for the thorium isotope thorium-228, given by its discoverer Otto Hahn. It is a radioactive substance formed as one of series of products in the chain of radioactive decay of thorium. Its immediate predecessor in the chain is Actinium-228, and it decays by alpha emission to radium-224 with a half-life of 1.91 years. The name radiothorium was given prior to the full understanding of the nature of isotopes of elements. [PJC]


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